四元

Ultimately, the eight institutions to 35.88 yuan price to be allocated 725 million shares, taking 10 to send an additional 3 to 7 to send 1 of the program, ex-dividend after the bodies of additional cost of 17.84 yuan.

最终，8所院校的三十五点八八元价格，将拨款7.250亿股，以10至增派3至7派遣的程序1，经过对十七点八四元额外费用的尸体除权。

Then, on the basis of above achieved constituent binary results, thermodynamic properties of 10 ternary liquid alioys (Cd-Bi-Pb, Cd-Pb-Sb, Cd-Pb-Sn, Mg-In-Cd, Zn-In- Cd, Cd-Bi-Sn, In-Bi-Pb, Sn-AgPb,Zn-In.Pb, Al-Cu-Zn), 3 quaternary ones (Cd-Bi-Pb-Sn, Zn-Sn-Cd-Bi, Zn-Sn-Cd-Pb) and 1 quinary. one (Zn-Sn-Pb-Cd-Bi) are predicted. For most of investigated multicomponent systems, the calculated activities are in good with the experimental ones, and in particular for multicompoment immiscible ones, the predicted results are satisfactory and exciting. At the same time, the comparison result between the three equations shows that Wilson equation and T-K-Wilson one are more stable than NRTL one, that maybe is because NRTL equation contains a third parameter, and so ,to some degree, Wilson model and T-K-Wilson model are superior to NRTL model. And also the comparison between local composition models and other models such as Pelton- Flengas?method, Krupkowski formalism, mass action concentration model and Hoch- Arpshofen model shows that local composition models are more convenient and credible.

在此基础之上应用局部组成型模型对10个三元液态合金（包括Cd-Bi-Pb、Cd-Pb-Sb、Cd-Pb-Sn、Mg-In-Cd、Zn-In-Cd、Cd-Bi-Sn、In-Bi-Pb、Sn-Ag-Pb、Zn-In-Pb、Al-Cu-Zn），3个四元液态合金（包括Cd-Bi-Pb-Sn、Zn-Sn-Cd-Bi、Zn-Sn-Cd-Pb）和1个五元液态合金（Zn-Sn-Pb-Cd-Bi）的活度进行了预测，预测效果良好，尤其对Zn-In-Pb系和Zn-Sn-Cd-Pb等多元液-液共存体系热力学性质的预测也取得了令人满意的结果；同时对三个方程的比较分析表明：Wilson方程和T-K-Wilson方程在多元系热力学性质的预测中表现稳定，而NRTL方程由于引入了物理意义不清楚的第三参数，使得其具有不确定性和不稳定性的特点，因此Wilson方程和T-K-Wilson方程较NRTL方程更为优越；此外对局部组成型模型与其它模型（如Pelton-Flengas方程、Krupkowski方程、作用浓度模型和Hoch-Arpshofen模型）的比较表明：局部组成型模型同样是优秀的，甚至在某些方面更为简便和可靠。

In this paper, the conventional isopiestic technique have been modified and extended to multicomponent unsaturated mixed solvent solutions, each containing two or three volatile solvents and two unsaturated solutes, and multicomponent saturated aqueous solutions, each containing two unsaturated solutes and one or two saturated solutes. Isopiestic measurements have been conducted systematically for the first time for two mixed solvent electrolyte solutions, two quaternary saturated aqueous solutions and three quinary saturated aqueous solutions and the experimental results have been compared with the ideal-like solution model.

本文将传统的等压技术，经过改进后，进一步应用于含有两种或三种挥发性溶剂和两种非饱和溶质的多元混合溶剂溶液以及含有一种或两种饱和溶质和两种非饱和溶质的多元饱和水溶液，首次系统地测定了两例混合溶剂电解质溶液、两例四元饱和水溶液和三例五元饱和水溶液的等压平衡，并将实验结果与类理想溶液模型进行了比较。

To reduce the traditional array size of four-component vector hydrophones and redundant components,a new direction of arrival estimation method was proposed using a uniform line array of two-component vector hydrophones.

为了减小传统四元矢量水听器阵的尺寸和减少冗余阵元，提出了采用等距二元矢量水听器直线阵的二维波达方向估计方法。

Methanol molecule participates in the proton transfer process, which takes place by a intermolecular six-membered proton-transfer transition state structure instead of the intramolecular four- membered. Consequently, the activation energy of the proton-transfer process is reduced greatly,resulting in the carbon-carbon bond formation process become the rate-determining step. The results are consistent with Aggarwal's the latest dynamics experiments.

CH3OH分子参与质子转移过程，使得原本通过四元环结构过渡态的质子转移过程通过六元环结构过渡态实现，从而极大地降低了质子转移过程的活化能，碳-碳键形成过程进而成为反应的速度控制步骤，研究结果与Aggarwal等的最新动力学研究成果相吻合。

In practical terms, an octonion is simply an octuple of real numbers

定义在八元数上的加法和乘法运算推广了在四元数上的加法和乘法运算。

In this paper, phase equilibria of quinary reciprocal system K~+, Na~+//CO_~(2-), SO_4~(2-), B_4O_7~(2-)-H_2O and its subsystems (two ternary systems and three quaternary systems) at 273 K were studied by isothermal evaporation method .

采用等温蒸发法研究了五元体系K~+，Na~+／／CO_3~(2-)，SO_4~(2-)，B_4O+7~(2-)-H_2O及其中两个三元子体系、三个四元子体系273 K相平衡关系。

Solubilities and physico-chemical properties in the solution of these systems were determined. According to the experimental data, equilibria phase diagrams and physico-chemical property -composition diagrams of ternary systems were plotted; Equilibrium phase diagrams and corresponding water content diagrams of quaternary systems were finished; Stable and metastable phase diagrams, corresponding water content diagrams of the quinary systems at 288K (saturated with Li2CO3) were also plotted.

测定了上述各体系288K平衡液相中各组份的溶解度及主要物化性质；绘制了三元子体系的相图，物化性质—组成图；绘制了四元子体系的干盐图及相应的水图；完成了该五元体系稳定及介稳平衡体系为Li_2CO_3饱和的投影相图，水含量图。

The components involving slag composition are divided into 2 categories, namely ① quadribasic series SiO2-CaO-MgO-Al2O3, base salinity variation being 0.9~1.3;② range of of ferric oxide is FeO 1%~7%, magnesia MgO, and base salinity is fixed at 1.08 pentabasic system SiO2-CaO-MgO-Al2O3-FeO slag.

研究的炉渣成份主要分成两大类，分别是①四元系列的SiO2-CaO-MgO-Al2O3，盐篡度变化为0.9~1.3；②氧化铁范围为FeO1%~7%，氧化镁MgO，盐基度因定为1.08的五元渣系SiO2-CaO-MgO-Al2O3-FeO炉渣。

Up till now, most of the research activities on Ⅲ-Ⅴ compound semiconductors have been focused on binaries, temaries and quaternaries.

迄今为止，对Ⅲ-Ⅴ族多元化合物的研究工作主要集中在三元和四元系材料上，很少有关于五元系的研究报道。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。